Examples of com.linkedin.d2.balancer.D2Client

com.linkedin.d2.balancer.properties.ServiceProperties
D2Client interface provides a way for anyone to interact with the admin tools for accessing D2 internals. In this case, Facilities provides a way for the user to investigate D2 directory structure (either in Zookeeper or in FileStore or other store implementation of D2) and few others. In short, Facilities is like an admin tools to D2 internals. It does NOT provide ability to serve rest or rpc request. For that ability we have the Client interface. @see com.linkedin.r2.transport.common.Client @author David Hoa @version $Revision: $

      URI uri1 = URI.create("http://test.qa1.com:1234");
      URI uri2 = URI.create("http://test.qa2.com:2345");
      URI uri3 = URI.create("http://test.qa3.com:6789");


      Map<Integer, PartitionData> partitionData = new HashMap<Integer, PartitionData>(1);
      partitionData.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(1d));
      Map<URI, Map<Integer, PartitionData>> uriData = new HashMap<URI, Map<Integer, PartitionData>>(3);
      uriData.put(uri1, partitionData);
      uriData.put(uri2, partitionData);
      uriData.put(uri3, partitionData);
      return (getUriProperties)

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    Map<Integer, Double> rawObject =
        JacksonUtil.getObjectMapper().readValue(partitionDataJson, HashMap.class);
    Map<Integer, PartitionData> partitionDataMap = new HashMap<Integer, PartitionData>();
    for (Map.Entry<Integer, Double> entry : rawObject.entrySet())
    {
      PartitionData data = new PartitionData(entry.getValue());
      partitionDataMap.put(entry.getKey(), data);
    }
    _announcer.setPartitionData(partitionDataMap);
  }

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  @Override
  public void setMarkUp(String clusterName, String uri, double weight) throws PropertyStoreException
  {
    Map<Integer, PartitionData> partitionDataMap = new HashMap<Integer, PartitionData>(1);
    partitionDataMap.put(DefaultPartitionAccessor.DEFAULT_PARTITION_ID, new PartitionData(weight));
    setMarkup(clusterName, uri, partitionDataMap, Collections.<String, Object>emptyMap());
  }

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  }


  @Override
  public LoadBalancerStateItem<ServiceProperties> getServiceProperties(String serviceName)
  {
    ServiceProperties serviceProperties = new ServiceProperties(_service, _cluster, _path, _strategyName);
    return new LoadBalancerStateItem<ServiceProperties>(serviceProperties, 1, 1);
  }

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    List<String> prioritizedSchemes = new ArrayList<String>();


    prioritizedSchemes.add("http");


    return (getServiceProperties)
        ? new LoadBalancerStateItem<ServiceProperties>(new ServiceProperties("service-1",
                                                                             "cluster-1",
                                                                             "/foo",
                                                                             "rr",
                                                                             Collections.<String>emptyList(),
                                                                             Collections.<String, Object>emptyMap(),

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    assertTrue(_state.isListeningToService("service-1"));
    assertNotNull(_state.getServiceProperties("service-1"));
    assertNull(_state.getServiceProperties("service-1").getProperty());


    ServiceProperties property =
        new ServiceProperties("service-1", "cluster-1", "/test", "random");


    _serviceRegistry.put("service-1", property);


    assertTrue(_state.isListeningToService("service-1"));
    assertNotNull(_state.getServiceProperties("service-1"));

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    _state.listenToService("service-1", new NullStateListenerCallback());


    assertNull(_state.getClient("service-1", uri));


    _serviceRegistry.put("service-1", new ServiceProperties("service-1", "cluster-1",
                                                            "/test", "random", null,
                                                            Collections.<String, Object>emptyMap(),
                                                             null, null, schemes, null));


    assertNull(_state.getClient("service-1", uri));

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    // set up state
    _state.listenToService("service-1", new NullStateListenerCallback());


    assertNull(_state.getStrategy("service-1", "http"));


    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                            "cluster-1",
                                                            "/test",
                                                            "random",
                                                            Collections.<String>emptyList(),
                                                            Collections.<String, Object>emptyMap(),

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    _state.listenToService("service-1", new NullStateListenerCallback());
    _state.listenToCluster("cluster-1", new NullStateListenerCallback());


    assertNull(_state.getStrategy("service-1", "http"));


    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                            "cluster-1",
                                                            "/test",
                                                            "random",
                                                            Collections.<String>emptyList(),
                                                            Collections.<String,Object>emptyMap(),
                                                            null,
                                                            null,
                                                            schemes,
                                                            null));


    assertNotNull(_state.getStrategy("service-1", "http"));


    LoadBalancerStrategy strategy = _state.getStrategy("service-1", "http");


    assertNotNull(strategy);
    assertTrue(strategy instanceof RandomLoadBalancerStrategy);


    // check that we're getting the exact same strategy (by pointer) every time
    assertTrue(strategy == _state.getStrategy("service-1", "http"));
    assertTrue(strategy == _state.getStrategy("service-1", "http"));


    // now make sure adding a cluster property won't change the strategy
    _clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));


    // we should still have the same strategy now
    LoadBalancerStrategy newStrategy = _state.getStrategy("service-1", "http");
    assertNotNull(newStrategy);
    assertTrue(strategy == newStrategy);
    assertTrue(newStrategy instanceof RandomLoadBalancerStrategy);


    strategy = newStrategy;


    // refresh by adding service
    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                                "cluster-1",
                                                                "/test",
                                                                "random",
                                                                Collections.<String>emptyList(),
                                                                Collections.<String,Object>emptyMap(),

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    assertNull(_state.getStrategy("service-1", "http"));


    // Put degrader into the strategyList, it it not one of the supported strategies in
    // this strategyFactory, so we should not get a strategy back for http.
    strategyList.add("degrader");
    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                            "cluster-1",
                                                            "/test",
                                                            "unusedInThisConstructor",
                                                            strategyList,
                                                            Collections.<String, Object>emptyMap(),
                                                            null,
                                                            null,
                                                            schemes,
                                                            null));
    _clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));
    assertNull(_state.getStrategy("service-1", "http"));


    // put the random strategy into the Strategy list, it is one of the supported strategies in the
    // strategyFactory for this unit test
    strategyList.clear();
    strategyList.add("random");
    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                            "cluster-1",
                                                            "/test",
                                                            "unusedInThisConstructor",
                                                            strategyList,
                                                            Collections.<String, Object>emptyMap(),
                                                            null,
                                                            null,
                                                            schemes,
                                                            null));


    _clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));


    LoadBalancerStrategy strategy = _state.getStrategy("service-1", "http");


    assertNotNull(strategy);
    assertTrue(strategy instanceof RandomLoadBalancerStrategy);


    // now add the degraderV3 strategy into the Strategy list
    strategyList.addFirst("degraderV3");
    _serviceRegistry.put("service-1", new ServiceProperties("service-1",
                                                            "cluster-1",
                                                            "/test",
                                                            "unusedInThisConstructor",
                                                            strategyList,
                                                            Collections.<String, Object>emptyMap(),

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